sarcasm – n. the use of words that mean the opposite of what you really want to say especially in order to insult someone, to show irritation, or to be funny : sarcastic – adj.
commentator – n. a person who discusses important people and events on television
reputation – n. the common opinion that people have about someone or something : the way in which people think of someone or something
talking head – n. informal : a person who gives information or opinions on a television show and whose head and shoulders are shown on the television screen